Roll-box and pedal mechanism



J, 0. SCHWARZ'AND e BJORKLUND ROLL BOX AND PEDAL MECHANISM.

APPLICATION FILED OCT. 6,1917 1,369,554. Patented Feb. 22, 1921.

2 SHEETS-SHEET l- INVENTORS Gzasiazr Bj f z JusiinQSck warz ATTORNEY 1. 6. SCHWARZ AND G. BJORKLUND.

ROLL BOX AND PEDAL MECHANISM.

APPLICATION FILED 00L 6. 1917.

7 1,369,554, Patented Feb. 22, 1921. 2 SHEETS-SHEETVZ- INVENTORS Blarkzwld JusiznQ Scfiwar-z.

1' o 54- BY wm New Y K; A m? women;

U To allhniiom itmayrojomle mi- 1 1 v. -Be it lmown thatwe, J USTINO, :SCHWARZ, 3 a citizen of the United States, and: GUSTA wiionmnnwgnnsnz, if y BJoRKLUNn, a subjectof the Kingof Sweden, residin at :New Yorkv city and "West New York, ew'} Jersey, respectively,ihave invented certain 7 new and useful lmprove ments in Roll e-Box and Pedal Mechanism, of 'WhlCll'tllQ followinggi'sf a; specification, reference being} had therein to the .accompanying drawing.

is illustrated inthe accompanying draw-- enlarged detail in perspective 7 w th parts broken awa' ,illustrating part of thepedal folding mec anism. Fig. 3is a View in perspective partlly position of t .board. Fig. 4 is a perspective viewpartly broken away showingthe position o-f the roll box beneath the keyboard with thekeye with parts broken away illustrating the roll box in upright position in front of t'he keyboard. I Fig. G is an enlarged cross sect onal board omitted. Fig. 5 is a perspective View View of part of the roll boxshowing certain buttonsfor controlllngthe pneumatic playing of the instrument and Fig. 71s an enlarged detail partly broken away illus trating part of the lockingmechanism for J the roll box. r

Referring now more particularlyto Figs.

" f 12, 8 indicates the'pedal cabinet beneath "the piano, and 9 anslideway bearing "for r establishing cooperativeconnection between the roll box and pedalv mechanism; 10 indicates the roll box afterit has been drawn; 7 out from beneath the front of the piano keyfboard in which position itimay be'turned upwardly as shown Fig. 5, and 10" lndl cates the same pushed inbeneath 'thekeyboard of the piano inthe position shown in Fig.3. I

The roll box,"it willbe'obs'eryed is con nected by a rod 11 to the slide members member 12 is free to slide upon the bar 11,

i A r B L B X' JNP seme -r1 I ea' e i ei a? broken" away illustrating "the p e. roll box beneath the key guided upon the bar 9. The slide I i I'e -i fre tb slide upoln the slide bear mg 79,; but is; shifted 'iby the stops 14 "1*5. The sl1de'jmember""13 "is provided with a sultableybindingscrew"16, which secures it tothe bar 11 so i that "when "the *rolli box 10 1801112 111 the position shown inf full outline, the pedal mech'anism belowji is in theposi-J tlongshownflin fulljoutline, and when the as shown 11 1 dotted outline, theff pedals are as follows-: 1

1,7 indicatesa bracket preferably I cast from metal and pro-. vided with overhanging gj inside I fianges 18%18. upon which are'secured ateach'side substantial L-shaped connetingbar's such as 19 preferably pivoted y-at 'the 1 base! of the" fover-hangmg flanges as indicated at 20 and at the other end secured to the toe-plate 21 suitable Lbasesupport or V l folded the F cabinet 8 as shown in dotted outline, the pedal jmechanism being providedwithtoes such as 22,'said toe-plate belng plvotally secured to the foot board23 at 24 as shown; At the upper part of" the foot board is also pivotally secured a con.- nectlng 'rod- 25 which at its lower extremity 1s secured tothe stem 26"of the Y-shap'ed bracket 'pi'votedat29. .The toe-plate 21 is I also pivotally connected by the rod 27 to V the rod 28'upon the bar- 29 shownto. advantage nFigg 2 and 30-31 fare icoiled ,sprlngsupon the bar 29 wound oppositely V, j

and connected to "the bar 28 and to the base [support '-Theother legf32fof the Y' shaped member is intended to'be connected to-.thebel1ows.

the rod28 at the bottom' and to the slide member 13atthe' top and from all of it it it will be seen thatas the roll box 10 is pushed inwardly to the position shown in dotted at the upper part turns upwardly. upon the rod 2&thereby'rotating'the pedal anti-clocks wise and at thesame'time lifting-the foot- The roll' box shown to better advantage in 33 indicates a' rod-pivotal1y tbnnected to outline at l0the rod-33 being carried back,

Fig. 5: is pivotally mounted at 34 upon the p, Q I I block 35.provided at the top ,with I-blocks 36 which are adapted to slide between the I plates 37%38 secured beneath the piano, thus I providing for a longitudinal sliding and support for the "roll boxas a whole f 39 indicatesan L-shaped bar provided board 23 until the entiremechanism is foldy ed in theposition' shown indotted outline.

box projected by-springs such as 52 upon the stems 53 which are secured at the lower y the leg 41 thereof at all times against the roll box so that when the roll box is drawn outwardly and turned upwardly as shown in Fig. 5, the end 41 of: said bar engages the ledge 42 of the link 43 which is provided with elongated slot 44 adapted to receive the pin 45 in the side wall 46 of the rollbox. This link 43 is also'pivotally connected to thelink 47. pivoted at 48 to the side of the box as shown and connected by spring 49 tending to keep the'button 50 projected outwardly. When it is desired to turn the 'roll box down and under the keyboard by pressinguponfthe button 50, the link 43 is turned slightly anti {clockwise upon the pivotal slide bearing 4145 thereby releasingits enga'gement with the bearing 41 and allowing the box to be manipulated as desired when the box is again'drawn out, theend4l of the lever 41 vfalls after the link 43 vunder influence of the springs 40 until it is again receded, locking the box in upright position as shown. V I

'51 indicates buttons at the top'of the roll endsto the blocks54which under influence of the springs 52 are normally projected upwardl against the felt buttons 55 thereby closing t e ports 56 insaid blocks. The pins 57 serve as guides andthe admission of atmospher'ical air to the tubes 58 is thus manually controlled, said tubes being preferably of rubber for flexibility'and connecting the fvarious parts of the stem intended to be controlled by said buttons.

Of course itywill be understood that various modifications may be made in the construction and arrangement of the arts without departingfrom: the spirit .0 invention as claimed. r r a We claim: i In combination with a musical instrument,

a folding pedal mechanism and a sliding.

music roll box,' said pedal mechanism pivotallyconnected at three essential points by links, and a link pivotally connecting one. ofsaid links withthe sliding mechanism of saidroll box.

In testimony whereof we hereunto afiix our signatures in, the presenceof two witnesses.

JUSTIN ofsoHwARz- Witnesses: V V

" F. CLARK ABRAHAMs,

1 CHAS: BIANoo.

GUSTAV BJORKLUND. 

